diff options
| -rw-r--r-- | src/soc/intel/common/block/include/intelblocks/pmclib.h | 17 | ||||
| -rw-r--r-- | src/soc/intel/common/block/pmc/pmclib.c | 27 |
2 files changed, 44 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/include/intelblocks/pmclib.h b/src/soc/intel/common/block/include/intelblocks/pmclib.h index 82eb2ae4c4..8947a22653 100644 --- a/src/soc/intel/common/block/include/intelblocks/pmclib.h +++ b/src/soc/intel/common/block/include/intelblocks/pmclib.h @@ -16,6 +16,7 @@ #ifndef SOC_INTEL_COMMON_BLOCK_PMCLIB_H #define SOC_INTEL_COMMON_BLOCK_PMCLIB_H +#include <device/pci_type.h> #include <stdint.h> /* Forward declare the power state struct here */ @@ -214,4 +215,20 @@ enum { MAINBOARD_POWER_STATE_PREVIOUS, }; +/* + * Implemented by SoC code to set PMC register to know which state + * system should go into after power is reapplied. + */ +void pmc_soc_set_afterg3_en(bool on); +/* + * Configure power state to go into when power is reapplied. + * + * To be called by SoC code once during boot and will be called by + * the "sleep" SMI handler when going into S5. + * + * `target_on` signifies that we are currently powering on, so that + * MAINBOARD_POWER_STATE_PREVIOUS can be handled accordingly. + */ +void pmc_set_power_failure_state(bool target_on); + #endif /* SOC_INTEL_COMMON_BLOCK_PMCLIB_H */ diff --git a/src/soc/intel/common/block/pmc/pmclib.c b/src/soc/intel/common/block/pmc/pmclib.c index 564aacb55e..ee99735547 100644 --- a/src/soc/intel/common/block/pmc/pmclib.c +++ b/src/soc/intel/common/block/pmc/pmclib.c @@ -579,3 +579,30 @@ void pmc_gpe_init(void) /* Set the routes in the GPIO communities as well. */ gpio_route_gpe(dw0, dw1, dw2); } + +void pmc_set_power_failure_state(const bool target_on) +{ + const int state = CONFIG_MAINBOARD_POWER_FAILURE_STATE; + bool on; + + switch (state) { + case MAINBOARD_POWER_STATE_OFF: + printk(BIOS_INFO, "Set power off after power failure.\n"); + on = false; + break; + case MAINBOARD_POWER_STATE_ON: + printk(BIOS_INFO, "Set power on after power failure.\n"); + on = true; + break; + case MAINBOARD_POWER_STATE_PREVIOUS: + printk(BIOS_INFO, "Keep power state after power failure.\n"); + on = target_on; + break; + default: + printk(BIOS_WARNING, "WARNING: Unknown power-failure state: %d\n", state); + on = false; + break; + } + + pmc_soc_set_afterg3_en(on); +} |